Metal working – Method of mechanical manufacture – Electrical device making
Patent
1998-04-29
2000-04-18
Arbes, Carl J.
Metal working
Method of mechanical manufacture
Electrical device making
29833, 414783, 414816, H05K 330
Patent
active
060499745
ABSTRACT:
A magnetic alignment apparatus (20) is provided for aligning a semiconductor die (11) and a packaging substrate (12) to enable aligned mounting therebetween. The alignment apparatus (20) includes a first magnetic device (23) coupled to the die (11) and adapted to generate a first magnetic field (25) oriented relative to a first reference point (26) of the die (11). A second magnetic device (27) is coupled to the substrate (12) and adapted to generate a second magnetic field (28) oriented relative to a second reference point (30) of the substrate (12). The first magnetic field (25) and the second magnetic field (28) cooperate to directionally align the first reference point (26) of the die substantially with the second reference point (30) of the substrate (12).
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Arbes Carl J.
National Semiconductor Corporation
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